上海维宏电子科技股份有限公司
Weihong Electronic Technology Co., Ltd.
44 Specialized, Concentrated, Focused
P_: the dwell time at the bottom of the hole, in ms, with no decimal point
F_: feed speed, even if the canned cycle is cancelled, this modal data is still effective in the
subsequent machining.
K_: number of repeats (repeated movement and drilling, effective under G91 incremental mode)
Fig. 4-31 G88 Machining Process
Process Description:
1. The cutter moves to the hole position (X, Y) in G00;
2. Moves down to the specified point R in G00;
3. Moves down to point Z at the bottom of the hole in G01;
4. Spindle stop after P;
5. Retracts to point R in G01;
6. Retracts to initial point (G98) or point R (G99) in G00;
7. Spindle CW.
Programming Example:
F1200. S600
G90
G00 X0. Y0. Z10. ’moving to the initial point
G17
M03 ’spindle CW on
G90 G99
’Specifying the coordinates of point R, point Z and hole 1, with dwell as 2(s), boring speed as 800
G88 X5. Y5. Z-10. R-5. P2000 F800
X25. ’hole 2
Y25. ’hole 3
G98 X5. ’hole 4, and setting to return to the initial point
G80
M05 ’spindle stop
M02
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